From 592936b4970582ee59cf3764188813b9ee5d7c46 Mon Sep 17 00:00:00 2001 From: Dmitry Kovalev Date: Fri, 7 Feb 2014 11:37:39 -0800 Subject: Cleaning up {simple, twopass}_encoder examples. Change-Id: Ide9c408f4cee7408741ef8c0ffac01645a5a67ca --- examples/simple_encoder.c | 61 +++----- examples/twopass_encoder.c | 336 +++++++++++++++++++-------------------------- 2 files changed, 167 insertions(+), 230 deletions(-) (limited to 'examples') diff --git a/examples/simple_encoder.c b/examples/simple_encoder.c index 0ae012c7e..50760549a 100644 --- a/examples/simple_encoder.c +++ b/examples/simple_encoder.c @@ -86,7 +86,6 @@ #include #define VPX_CODEC_DISABLE_COMPAT 1 - #include "vpx/vp8cx.h" #include "vpx/vpx_encoder.h" @@ -102,33 +101,17 @@ void usage_exit() { exit(EXIT_FAILURE); } -static int read_frame(FILE *f, vpx_image_t *img) { - int res = 1; - size_t to_read = img->w * img->h * 3 / 2; - size_t nbytes = fread(img->planes[0], 1, to_read, f); - if (nbytes != to_read) { - res = 0; - if (nbytes > 0) - printf("Warning: Read partial frame. Check your width & height!\n"); - } - return res; -} - -static int is_valid_dimension(int value) { - return value >= 16 && (value % 2 == 0); -} - int main(int argc, char **argv) { - FILE *infile; + FILE *infile = NULL; vpx_codec_ctx_t codec; vpx_codec_enc_cfg_t cfg; int frame_count = 0; vpx_image_t raw; vpx_codec_err_t res; - VpxVideoInfo info; - VpxVideoWriter *writer; - const int fps = 30; // TODO(dkovalev) add command line argument - const int bitrate = 100; // kbit/s TODO(dkovalev) add command line argument + VpxVideoInfo info = {0}; + VpxVideoWriter *writer = NULL; + const int fps = 30; // TODO(dkovalev) add command line argument + const int bitrate = 200; // kbit/s TODO(dkovalev) add command line argument exec_name = argv[0]; @@ -141,21 +124,23 @@ int main(int argc, char **argv) { info.time_base.numerator = 1; info.time_base.denominator = fps; - if (!is_valid_dimension(info.frame_width) || - !is_valid_dimension(info.frame_height)) - die("Invalid resolution: %dx%d", info.frame_width, info.frame_height); + if (info.frame_width <= 0 || + info.frame_height <= 0 || + (info.frame_width % 2) != 0 || + (info.frame_height % 2) != 0) { + die("Invalid frame size: %dx%d", info.frame_width, info.frame_height); + } if (!vpx_img_alloc(&raw, VPX_IMG_FMT_I420, info.frame_width, - info.frame_height, 1)) - die("Failed to allocate image"); + info.frame_height, 1)) { + die("Failed to allocate image."); + } printf("Using %s\n", vpx_codec_iface_name(interface)); res = vpx_codec_enc_config_default(interface, &cfg, 0); - if (res) { - printf("Failed to get config: %s\n", vpx_codec_err_to_string(res)); - return EXIT_FAILURE; - } + if (res) + die_codec(&codec, "Failed to get default codec config."); cfg.g_w = info.frame_width; cfg.g_h = info.frame_height; @@ -167,25 +152,23 @@ int main(int argc, char **argv) { if (!writer) die("Failed to open %s for writing.", argv[4]); - // Open input file for this encoding pass if (!(infile = fopen(argv[3], "rb"))) die("Failed to open %s for reading.", argv[3]); - // Initialize codec if (vpx_codec_enc_init(&codec, interface, &cfg, 0)) die_codec(&codec, "Failed to initialize encoder"); - - while (read_frame(infile, &raw)) { + while (vpx_img_read(&raw, infile)) { vpx_codec_iter_t iter = NULL; const vpx_codec_cx_pkt_t *pkt = NULL; + + ++frame_count; + res = vpx_codec_encode(&codec, &raw, frame_count, 1, 0, VPX_DL_GOOD_QUALITY); if (res != VPX_CODEC_OK) die_codec(&codec, "Failed to encode frame"); - ++frame_count; - while ((pkt = vpx_codec_get_cx_data(&codec, &iter)) != NULL) { if (pkt->kind == VPX_CODEC_CX_FRAME_PKT) { const int keyframe = (pkt->data.frame.flags & VPX_FRAME_IS_KEY) != 0; @@ -195,14 +178,14 @@ int main(int argc, char **argv) { pkt->data.frame.pts)) die_codec(&codec, "Failed to write compressed frame."); printf(keyframe ? "K" : "."); + fflush(stdout); } } } printf("\n"); - fclose(infile); - printf("Processed %d frames.\n", frame_count); + vpx_img_free(&raw); if (vpx_codec_destroy(&codec)) die_codec(&codec, "Failed to destroy codec."); diff --git a/examples/twopass_encoder.c b/examples/twopass_encoder.c index b0f0426c6..93b6150a5 100644 --- a/examples/twopass_encoder.c +++ b/examples/twopass_encoder.c @@ -50,218 +50,172 @@ #include #include -#include #include + #define VPX_CODEC_DISABLE_COMPAT 1 -#include "vpx/vpx_encoder.h" #include "vpx/vp8cx.h" -#define interface (vpx_codec_vp8_cx()) -#define fourcc 0x30385056 - -#define IVF_FILE_HDR_SZ (32) -#define IVF_FRAME_HDR_SZ (12) - -static void mem_put_le16(char *mem, unsigned int val) { - mem[0] = val; - mem[1] = val>>8; -} - -static void mem_put_le32(char *mem, unsigned int val) { - mem[0] = val; - mem[1] = val>>8; - mem[2] = val>>16; - mem[3] = val>>24; -} +#include "vpx/vpx_encoder.h" -static void die(const char *fmt, ...) { - va_list ap; +#include "./tools_common.h" +#include "./video_writer.h" - va_start(ap, fmt); - vprintf(fmt, ap); - if(fmt[strlen(fmt)-1] != '\n') - printf("\n"); - exit(EXIT_FAILURE); -} +#define interface (vpx_codec_vp8_cx()) -static void die_codec(vpx_codec_ctx_t *ctx, const char *s) { - const char *detail = vpx_codec_error_detail(ctx); +static const char *exec_name; - printf("%s: %s\n", s, vpx_codec_error(ctx)); - if(detail) - printf(" %s\n",detail); - exit(EXIT_FAILURE); +void usage_exit() { + fprintf(stderr, "Usage: %s \n", exec_name); + exit(EXIT_FAILURE); } -static int read_frame(FILE *f, vpx_image_t *img) { - size_t nbytes, to_read; - int res = 1; - - to_read = img->w*img->h*3/2; - nbytes = fread(img->planes[0], 1, to_read, f); - if(nbytes != to_read) { - res = 0; - if(nbytes > 0) - printf("Warning: Read partial frame. Check your width & height!\n"); +static void get_frame_stats(vpx_codec_ctx_t *ctx, + const vpx_image_t *img, + vpx_codec_pts_t pts, + uint64_t duration, + vpx_enc_frame_flags_t flags, + uint64_t deadline, + vpx_fixed_buf_t *stats) { + vpx_codec_iter_t iter = NULL; + const vpx_codec_cx_pkt_t *pkt = NULL; + const vpx_codec_err_t res = vpx_codec_encode(ctx, img, pts, duration, flags, + deadline); + if (res != VPX_CODEC_OK) + die_codec(ctx, "Failed to get frame stats."); + + while ((pkt = vpx_codec_get_cx_data(ctx, &iter)) != NULL) { + if (pkt->kind == VPX_CODEC_STATS_PKT) { + const uint8_t *const pkt_buf = pkt->data.twopass_stats.buf; + const size_t pkt_size = pkt->data.twopass_stats.sz; + stats->buf = realloc(stats->buf, stats->sz + pkt_size); + memcpy((uint8_t *)stats->buf + stats->sz, pkt_buf, pkt_size); + stats->sz += pkt_size; } - return res; + } } -static void write_ivf_file_header(FILE *outfile, - const vpx_codec_enc_cfg_t *cfg, - int frame_cnt) { - char header[32]; - - if(cfg->g_pass != VPX_RC_ONE_PASS && cfg->g_pass != VPX_RC_LAST_PASS) - return; - header[0] = 'D'; - header[1] = 'K'; - header[2] = 'I'; - header[3] = 'F'; - mem_put_le16(header+4, 0); /* version */ - mem_put_le16(header+6, 32); /* headersize */ - mem_put_le32(header+8, fourcc); /* headersize */ - mem_put_le16(header+12, cfg->g_w); /* width */ - mem_put_le16(header+14, cfg->g_h); /* height */ - mem_put_le32(header+16, cfg->g_timebase.den); /* rate */ - mem_put_le32(header+20, cfg->g_timebase.num); /* scale */ - mem_put_le32(header+24, frame_cnt); /* length */ - mem_put_le32(header+28, 0); /* unused */ - - (void) fwrite(header, 1, 32, outfile); +static void encode_frame(vpx_codec_ctx_t *ctx, + const vpx_image_t *img, + vpx_codec_pts_t pts, + uint64_t duration, + vpx_enc_frame_flags_t flags, + uint64_t deadline, + VpxVideoWriter *writer) { + vpx_codec_iter_t iter = NULL; + const vpx_codec_cx_pkt_t *pkt = NULL; + const vpx_codec_err_t res = vpx_codec_encode(ctx, img, pts, duration, flags, + deadline); + if (res != VPX_CODEC_OK) + die_codec(ctx, "Failed to encode frame."); + + while ((pkt = vpx_codec_get_cx_data(ctx, &iter)) != NULL) { + if (pkt->kind == VPX_CODEC_CX_FRAME_PKT) { + const int keyframe = (pkt->data.frame.flags & VPX_FRAME_IS_KEY) != 0; + + if (!vpx_video_writer_write_frame(writer, pkt->data.frame.buf, + pkt->data.frame.sz, + pkt->data.frame.pts)) + die_codec(ctx, "Failed to write compressed frame."); + printf(keyframe ? "K" : "."); + fflush(stdout); + } + } } +int main(int argc, char **argv) { + FILE *infile = NULL; + VpxVideoWriter *writer = NULL; + vpx_codec_ctx_t codec; + vpx_codec_enc_cfg_t cfg; + vpx_image_t raw; + vpx_codec_err_t res; + vpx_fixed_buf_t stats = {0}; + VpxVideoInfo info = {0}; + int pass; + const int fps = 30; // TODO(dkovalev) add command line argument + const int bitrate = 200; // kbit/s TODO(dkovalev) add command line argument + + if (argc != 5) + die("Invalid number of arguments."); + + info.codec_fourcc = VP8_FOURCC; + info.time_base.numerator = 1; + info.time_base.denominator = fps; + info.frame_width = strtol(argv[1], NULL, 0); + info.frame_height = strtol(argv[2], NULL, 0); + + if (info.frame_width <= 0 || + info.frame_height <= 0 || + (info.frame_width % 2) != 0 || + (info.frame_height % 2) != 0) { + die("Invalid frame size: %dx%d", info.frame_width, info.frame_height); + } + + if (!vpx_img_alloc(&raw, VPX_IMG_FMT_I420, info.frame_width, + info.frame_height, 1)) { + die("Failed to allocate image", info.frame_width, info.frame_height); + } + + writer = vpx_video_writer_open(argv[4], kContainerIVF, &info); + if (!writer) + die("Failed to open %s for writing", argv[4]); + + printf("Using %s\n", vpx_codec_iface_name(interface)); + + res = vpx_codec_enc_config_default(interface, &cfg, 0); + if (res) + die_codec(&codec, "Failed to get default codec config."); + + cfg.g_w = info.frame_width; + cfg.g_h = info.frame_height; + cfg.g_timebase.num = info.time_base.numerator; + cfg.g_timebase.den = info.time_base.denominator; + cfg.rc_target_bitrate = bitrate; + + for (pass = 0; pass < 2; ++pass) { + int frame_count = 0; + + if (pass == 0) { + cfg.g_pass = VPX_RC_FIRST_PASS; + } else { + cfg.g_pass = VPX_RC_LAST_PASS; + cfg.rc_twopass_stats_in = stats; + } -static void write_ivf_frame_header(FILE *outfile, - const vpx_codec_cx_pkt_t *pkt) -{ - char header[12]; - vpx_codec_pts_t pts; - - if(pkt->kind != VPX_CODEC_CX_FRAME_PKT) - return; + if (!(infile = fopen(argv[3], "rb"))) + die("Failed to open %s for reading", argv[3]); - pts = pkt->data.frame.pts; - mem_put_le32(header, pkt->data.frame.sz); - mem_put_le32(header+4, pts&0xFFFFFFFF); - mem_put_le32(header+8, pts >> 32); + if (vpx_codec_enc_init(&codec, interface, &cfg, 0)) + die_codec(&codec, "Failed to initialize encoder"); - (void) fwrite(header, 1, 12, outfile); -} + while (vpx_img_read(&raw, infile)) { + ++frame_count; -int main(int argc, char **argv) { - FILE *infile, *outfile; - vpx_codec_ctx_t codec; - vpx_codec_enc_cfg_t cfg; - int frame_cnt = 0; - vpx_image_t raw; - vpx_codec_err_t res; - long width; - long height; - int frame_avail; - int got_data; - int flags = 0; - int pass; - vpx_fixed_buf_t stats = {0}; - - /* Open files */ - if(argc!=5) - die("Usage: %s \n", argv[0]); - width = strtol(argv[1], NULL, 0); - height = strtol(argv[2], NULL, 0); - if(width < 16 || width%2 || height <16 || height%2) - die("Invalid resolution: %ldx%ld", width, height); - if(!vpx_img_alloc(&raw, VPX_IMG_FMT_I420, width, height, 1)) - die("Faile to allocate image", width, height); - if(!(outfile = fopen(argv[4], "wb"))) - die("Failed to open %s for writing", argv[4]); - - printf("Using %s\n",vpx_codec_iface_name(interface)); - - /* Populate encoder configuration */ - res = vpx_codec_enc_config_default(interface, &cfg, 0); - if(res) { - printf("Failed to get config: %s\n", vpx_codec_err_to_string(res)); - return EXIT_FAILURE; + if (pass == 0) { + get_frame_stats(&codec, &raw, frame_count, 1, 0, VPX_DL_BEST_QUALITY, + &stats); + } else { + encode_frame(&codec, &raw, frame_count, 1, 0, VPX_DL_BEST_QUALITY, + writer); + } } - /* Update the default configuration with our settings */ - cfg.rc_target_bitrate = width * height * cfg.rc_target_bitrate - / cfg.g_w / cfg.g_h; - cfg.g_w = width; - cfg.g_h = height; - - write_ivf_file_header(outfile, &cfg, 0); - - for(pass=0; pass<2; pass++) { - frame_cnt = 0; - - if(pass == 0) - cfg.g_pass = VPX_RC_FIRST_PASS; - else { - cfg.g_pass = VPX_RC_LAST_PASS; - cfg.rc_twopass_stats_in = stats; - } - - /* Open input file for this encoding pass */ - if(!(infile = fopen(argv[3], "rb"))) - die("Failed to open %s for reading", argv[3]); - - /* Initialize codec */ - if(vpx_codec_enc_init(&codec, interface, &cfg, 0)) - die_codec(&codec, "Failed to initialize encoder"); - - frame_avail = 1; - got_data = 0; - while(frame_avail || got_data) { - vpx_codec_iter_t iter = NULL; - const vpx_codec_cx_pkt_t *pkt; - - frame_avail = read_frame(infile, &raw); - if(vpx_codec_encode(&codec, frame_avail? &raw : NULL, frame_cnt, - 1, flags, VPX_DL_BEST_QUALITY)) - die_codec(&codec, "Failed to encode frame"); - got_data = 0; - while( (pkt = vpx_codec_get_cx_data(&codec, &iter)) ) { - got_data = 1; - switch(pkt->kind) { - case VPX_CODEC_CX_FRAME_PKT: - write_ivf_frame_header(outfile, pkt); - (void) fwrite(pkt->data.frame.buf, 1, pkt->data.frame.sz, - outfile); - break; - case VPX_CODEC_STATS_PKT: - stats.buf = realloc(stats.buf, stats.sz - + pkt->data.twopass_stats.sz); - if(!stats.buf) - die("Memory reallocation failed.\n"); - memcpy((char*)stats.buf + stats.sz, - pkt->data.twopass_stats.buf, - pkt->data.twopass_stats.sz); - stats.sz += pkt->data.twopass_stats.sz; - break; - default: - break; - } - printf(pkt->kind == VPX_CODEC_CX_FRAME_PKT - && (pkt->data.frame.flags & VPX_FRAME_IS_KEY)? "K":"."); - fflush(stdout); - } - frame_cnt++; - } - printf("\n"); - fclose(infile); - printf("Pass %d complete.\n", pass+1); - if(vpx_codec_destroy(&codec)) - die_codec(&codec, "Failed to destroy codec"); + if (pass == 0) { + get_frame_stats(&codec, NULL, frame_count, 1, 0, VPX_DL_BEST_QUALITY, + &stats); + } else { + printf("\n"); } - printf("Processed %d frames.\n",frame_cnt-1); - vpx_img_free(&raw); - free(stats.buf); + fclose(infile); + printf("Pass %d complete. Processed %d frames.\n", pass + 1, frame_count); + if (vpx_codec_destroy(&codec)) + die_codec(&codec, "Failed to destroy codec."); + } + + vpx_img_free(&raw); + free(stats.buf); + + vpx_video_writer_close(writer); - /* Try to rewrite the file header with the actual frame count */ - if(!fseek(outfile, 0, SEEK_SET)) - write_ivf_file_header(outfile, &cfg, frame_cnt-1); - fclose(outfile); - return EXIT_SUCCESS; + return EXIT_SUCCESS; } -- cgit v1.2.3